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10 5
1 slave
2 slaves
3 slaves
4 slaves
5 slaves
6 slaves
10 4
7 slaves
8 slaves
9 slaves
11 slaves
10 slaves
10 3
10 2
10 1
10 0
10 -1
50
100 50
200 50
300 50
400 50
Number of concurrent users
(a)
10 5
1 slave
2 slaves
3 slaves
4 slaves
5 slaves
6 slaves
10 4
7 slaves
8 slaves
9 slaves
11 slaves
10 slaves
10 3
10 2
10 1
10 0
10 -1
50
100 50
200 50
300 50
400 50
Number of concurrent users
(b)
10 5
1 slave
2 slaves
3 slaves
4 slaves
10 4
5 slaves
6 slaves
7 slaves
8 slaves
9 slaves
11 slaves
10 slaves
10 3
10 2
10 1
10 0
10 -1
50
100 50
200 50
300 50
400 50
Number of concurrent users
(c)
FIGURE 11.7 Average relative replication delay of the workload with the read/write ratio is
80/20. (a) Same zone ( us - west -1 a ). (b) Different zone ( us - west -1 b ). (c) Different region ( eu - west -1 a ).
 
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